Child resistant safety closure

Claim 2

A container, safety closure construction comrpsing a container having a neck, a shoulder portion adjacent said neck and latching means adjacent said neck, an integral one piece closure comprising a cap portion and a flexible frustum conical skirt portion having a flexible hinge connection area at it upper end with said cap portion, the frustum conical skirt portion having on its underside and integral therewith latching means engageable with the latching means on said container, said frustum conical skirt portion overlying said container shoulder and covering both said latching means and rendering them inaccessible in the latched condition thereof, the flexibility of said skirt portion and said hinge connection enabling the skirt portion to be completely inverted to effect disengagement of the latching means and removal of the closure.

Claim 3

The construction of claim 1 wherein the container neck has screw threads and the closure cap has complementary threads to provide for closing and opening of the closure by turning the same on the neck, the latching means on the container comprises at least one abutment, and the latching means on the skirt portion comprises at least one tooth which engages the abutment in the closed condition of the cap to prevent unscrewing of the closure in a direction for opening the same.

Claim 4

The construction of claim 1 wherein the latching means on the container comprises a plurality of spaced-apart abutments integral with the container, and the latching means on the skirt comprises a plurality of spaced-apart teeth integral with the skirt.

Claim 5

A container, safety closure construction comprising a container having a cylindrical neck with screw threads, and a shoulder portion below and adjacent the neck provided with at least one latching abutment on the top thereof, a closure of integrally molded plastic material comprising a cylindrical cap with complementary threads to provide for closing and opening of the closure by turning the same on the neck, and also comprising a flexible frustum conical skirt portion having a flexible hinge connection area at its upper edge with said cap, said skirt portion having on its underside at least one latching tooth integral therewith cooperable with the latching abutment on the container shoulder and being invertible along its hinge connection from a downward position in the latched condition of the closure to an upward position in the unlatched condition, the latching abutment on the shoulder portion of the container being completely covered and inaccessible in the latched condition of the closure.

Claim 6

A container, safety closure construction comprising a container having a cylindrical neck with screw threads, and a shoulder portion below and adjacent the neck provided with at least one latching abutment on the top thereof, a closure of integrally molded plastic material comprising a cylindrical cap with complementary threads to provide for closing and opening of the closure by turning the same on the neck, and also comprising a flexible frustum conical skirt portion having a flexible hinge connection area at its upper edge with said cap, said skirt portion having on its underside at least one latching tooth integral therewith cooperable with the latching abutment on the container shoulder and being invertible along its hinge connection from a downward position in the latched condition of the closure to an upward position in the unlatched condition, the latching abutment on the shoulder portion of the container being completely covered and inaccessible in the latched condition of the closure.

Claim 7

The construction of claim 4 wherein said frustum conical section overhangs the shoulder portion of the container having the latching abutment, and the container has a portion adjacent such overhang to provide a notch enabling engagement of an implement against such overhang of said section to effect inversion thereof.

Claim 8

The construction of claim 4 wherein the invertible skirt portion extends from the lower end of the cylindrical cap of the closure.

Claim 9

The construction of claim 4 wherein the invertible skirt portion extends from the upper end of the cylindrical cap of the closure.

Claim 10

A safety closure for a container provided with a neck and latching means cooperable with latching means on the closure, said closure including a cap portion and a flexible frustum conical skirt portion having a flexible hinge connection area at its upper end with said cap portion and which is manually movable from a downward position in the latched condition of the closure to an inverted upward position in the unlatched condition, and at least one latching tooth integral with and extending from the underside of said frustum conical skirt portion and which is engageable with the container latching means in the downward position of the skirt portion and disengageable from the container latching means wheN said skirt portion is inverted to its upward position, said frustum conical section covering said tooth and said container latching means and rendering them inaccessible in the latched condition thereof.

Claim 11

A safety closure for a container provided with a neck and latching means cooperable with latching means on the closure, said closure including a cap portion and a flexible frustum conical skirt portion having a flexible hinge connection area at its upper end with said cap portion and which is manually movable from a downward position in the latched condition of the closure to an inverted upward position in the unlatched condition, and at least one latching tooth integral with and extending from the underside of said frustum conical skirt portion and which is engageable with the container latching means in the downward position of the skirt portion and disengageable from the container latching means wheN said skirt portion is inverted to its upward position, said frustum conical section covering said tooth and said container latching means and rendering them inaccessible in the latched condition thereof.

Claim 12

A container having a neck, a shoulder adjacent the neck and a plurality of latching abutments integral with said shoulder and extending from the top thereof and which are cooperable with a safety closure including an invertible frustum conical section forming a hingedly connected part of the closure and having latching teeth extending from the underside thereof cooperable with said latching abutments on the container, the location of said container abutments on top of said shoulder enabling them to be completely covered by said frustum conical skirt in the latched condition to render them inaccessible.

Claim 13

A container having a neck, a shoulder adjacent the neck and a plurality of latching abutments integral with said shoulder and extending from the top thereof and which are cooperable with a safety closure including an invertible frustum conical section forming a hingedly connected part of the closure and having latching teeth extending from the underside thereof cooperable with said latching abutments on the container, the location of said container abutments on top of said shoulder enabling them to be completely covered by said frustum conical skirt in the latched condition to render them inaccessible.

Claim 14

The container of claim 9 having a notch portion adjacent said shoulder enabling engagement of an instrumentality with the lower edge of said frustum conical section to effect inversion thereof.

Claim 15

The safety closure of claim 8 which is a one piece member of integrally molded plastic wherein the frustum conical skirt portion is a substantially continuous solid, the wall thickness of the skirt is relatively thin compared to that of the cap so as to have limited flexibility, and the hinge connection area is a molded section between the cap and the skirt.